Eric J. Hyllengren - 27 Jan 2025 Form 4 Insider Report for Atara Biotherapeutics, Inc. (ATRA)

Role: EVP, CFO and COO
Signature: /s/ John Chao, Attorney-in-Fact for Eric J. Hyllengren
Issuer symbol: ATRA
Transactions as of: 27 Jan 2025
Net transactions value: $0
Form type: 4
Filing time: 29 Jan 2025, 16:52:53 UTC
Previous filing: 20 Nov 2024
Next filing: 05 Mar 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ATRA	Common Stock	Award	$0	+34,050	+146%	$0.000000	57,442	27 Jan 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	These restricted stock units ("RSUs") vest as to 1/8th of the total number of shares (rounded down to the next whole number of shares) on the second Quarterly Vesting Date (as defined below) following January 27, 2025, and as to 1/8th of the total number of shares (rounded down to the next whole number of shares) on the next seven Quarterly Vesting Dates, such that all of the shares subject to the RSUs shall be vested on the last Quarterly Vesting Date, subject to the reporting person's continuous service. "Quarterly Vesting Date" means March 1, May 15, August 15, and November 15 of each year, provided that if such date falls on a weekend or holiday, the Quarterly Vesting Date shall be the first business day after such date.

Content

These restricted stock units ("RSUs") vest as to 1/8th of the total number of shares (rounded down to the next whole number of shares) on the second Quarterly Vesting Date (as defined below) following January 27, 2025, and as to 1/8th of the total number of shares (rounded down to the next whole number of shares) on the next seven Quarterly Vesting Dates, such that all of the shares subject to the RSUs shall be vested on the last Quarterly Vesting Date, subject to the reporting person's continuous service. "Quarterly Vesting Date" means March 1, May 15, August 15, and November 15 of each year, provided that if such date falls on a weekend or holiday, the Quarterly Vesting Date shall be the first business day after such date.